〔(一2xy^4)^2〕^3
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(-3xy+2xy)-(4xy+xy)
〔(一2xy^4)^2〕^3
3xy-4xy-(-2xy)
3xy-4xy-(-2xy)
一3(2x^2一xy)+4(x^2+xy一6) (^表示次方)
(-4xy^3)×(-xy)+(-3xy^2)^2
(-3xy^2)^2+(-4xy^3)*(-xy)=多少
(-4xy^3)*(-xy)+(-3xy^2)^2
(3xy^2)^2+(-xy^3)(4xy)
计算-xy-(4z-2xy)-(3xy-4z)
-xy(4z-2xy)-(3xy-4z) 化简
计算:3xy-4xy-(-2xy)要过程
(1)3xy-4xy-(-2xy)
3xy-4xy-(-2xy)的解法
3xy-4xy-(-2xy) 快啊,亲
3xy-3xy-xy+2yx
1.3xy -4xy-(2xy)
2xy.(-3xy)÷(xy)